Manuscript Withdrawal 

Withdrawing submitted or published manuscripts is not recommended. If the author intends to retract the manuscript, the following rules must be followed:

• Manuscripts may only be withdrawn for acceptable reasons. It must not be withdrawn due to being already published in another journal.

• The author must make a letter requesting withdrawal of the manuscript to the chief editor, along with the reasons for withdrawal. All authors must know requests for withdrawal of the manuscript by signing the letter